Dental Ceramic Coloring Using Single-Liquid Metal-Ion Gradation
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Solution Overview
Problem
Existing dental ceramics require multiple coloring liquids and repetitive coloring steps, which are time-consuming and labor-intensive.
Innovation Solution
A method involving a single coloring liquid containing at least two types of metal ions with a specific difference in standard oxidation-reduction potentials is used to form a gradation inside the dental ceramic in a single step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple coloring liquids are used sequentially to achieve gradation in dental ceramic, then the coloring effect is improved, but the time and labor required increase significantly
Solution Approach 1:
The patent combines multiple coloring functions into a single coloring liquid by incorporating multiple metal ions with different standard electrode potentials. This allows the dental ceramic to achieve gradient coloring effects that previously required multiple separate coloring steps and liquids, thereby reducing processing time while maintaining coloring quality.
Solution Approach 2:
The coloring liquid is designed to perform multiple coloring functions simultaneously through the inclusion of multiple metal ions. A single coloring liquid can produce various color gradients within the dental ceramic by utilizing the different electrochemical properties of the contained metal ions, eliminating the need for multiple specialized coloring liquids.
2Manufacturing precision
If multiple coloring liquids are used sequentially to achieve gradation in dental ceramic, then the coloring effect is improved, but the process complexity increases
Solution Approach 1:
The patent combines multiple coloring functions into a single coloring liquid by incorporating multiple metal ions with different standard electrode potentials. This allows the dental ceramic to achieve gradient coloring effects that previously required multiple separate coloring steps and liquids, thereby reducing processing time while maintaining coloring quality.
Solution Approach 2:
The coloring liquid is designed to perform multiple coloring functions simultaneously through the inclusion of multiple metal ions. A single coloring liquid can produce various color gradients within the dental ceramic by utilizing the different electrochemical properties of the contained metal ions, eliminating the need for multiple specialized coloring liquids.
3Manufacturing precision
If multiple coloring liquids are used sequentially to achieve gradation in dental ceramic, then the coloring effect is improved, but the labor and material requirements increase
Solution Approach 1:
The patent combines multiple coloring functions into a single coloring liquid by incorporating multiple metal ions with different standard electrode potentials. This allows the dental ceramic to achieve gradient coloring effects that previously required multiple separate coloring steps and liquids, thereby reducing processing time while maintaining coloring quality.
Solution Approach 2:
The coloring liquid is designed to perform multiple coloring functions simultaneously through the inclusion of multiple metal ions. A single coloring liquid can produce various color gradients within the dental ceramic by utilizing the different electrochemical properties of the contained metal ions, eliminating the need for multiple specialized coloring liquids.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for efficient formation of a gradation within the dental ceramic in a single coloring step, reducing time and effort while achieving a natural tooth-like color and structure.
Implementation Method 1
The coloring liquid contains at least two types of metal ions in which a difference between standard oxidation-reduction potentials is 0.5 or more and 4.0 or less
Data Source
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AI summary
A method for coloring a dental ceramic (10) includes a step of contacting a coloring liquid (30) with the dental ceramic (10). The coloring liquid (30) contains at least two types of metal ions in which a difference between standard oxidation-reduction potentials is 0.5 or more and 4.0 or less.